My point isn't that NSA's FISA directives are surgical; like you, I doubt that they are. My point is that upon receiving them, a lawyer at Google approves or rejects them, not a SQL query.
If you read all my comments on this whole annoying story I think you'll find that I'm rarely (maybe never?) sticking up for NSA, but I am happy to stick up for Google anywhere that I can. Google is actually (in this instance) fighting for your privacy, and then getting shellacked on message boards like this; what's worse, they're prevented by the USG from explaining what's happening. They're being equated with companies like AT&T, companies that appear to be sharing bedding with NSA. That belief is wrong, it's unfair, and it's counterproductive.